
Linear Integrated Systems
4042 Clipper Court Fremont, CA 94538 Tel: 510 490-9160 Fax: 510 353-0261
FEATURES
ULTRA LOW NOISE
LOW GATE LEAKAGE
ABSOLUTE MAXIMUM RATINGS
1
@ 25 °C (unless otherwise stated)
e
n
= 3nV/
√
Hz
I
G
= 15pA
Maximum Temperatures
Storage Temperature
Operating Junction Temperature
-65 to +150 °C
-55 to +135 °C
Maximum Power Dissipation
Continuous Power Dissipation @ +125 °C
Maximum Currents
Gate Forward Current
Maximum Voltages
350mW
I
G(F)
= 50mA
Drain to Source
Gate to Source
V
DSO
= 60V
V
GSS
= 60V
Gate to Drain
V
GDS
= 60V
ELECTRICAL CHARACTERISTICS @ 25 °C (unless otherwise stated)
SYMBOL
BV
GSS
V
GS(OFF)
V
GS
I
DSS
I
G
I
G
I
GSS
Y
fss
Y
fs
Y
oss
Y
os
CHARACTERISTIC
Gate to Source Breakdown Voltage
Gate to Source Pinch-off Voltage
Gate to Source Operating Voltage
Drain to Source Saturation Current
Gate Operating Current
Gate Operating Current Reduced V
DG
Gate to Source Leakage Current
Full Conductance Transconductance
Typical Conductance Transconductance
Full Output Conductance
Typical Output Conductance
MIN
60
1
0.5
1.5
1500
1000
TYP MAX
5
15
5
1500
0.2
UNITS
V
V
V
mA
pA
pA
pA
μmho
μmho
μmho
μmho
CONDITIONS
V
DS
= 0, I
D
= 1nA
V
DS
= 15V, I
D
= 1nA
V
DS
= 15V, I
D
= 500μA
V
DG
= 15V, V
GS
= 0
V
DG
= 15V, I
D
= 500μA
V
DG
= 3V, I
D
= 500μA
V
DG
= 15V, V
DS
= 0
V
GD
= 15V, V
GS
= 0,
f
= 1kHz
V
DG
= 15V, I
D
= 500μA
V
DG
= 15V, V
GS
= 0
V
DG
= 15V, I
D
= 500μA
3.5
3.5
15
50
30
100
20
2
NF
Noise Figure
0.5
dB
V
DS
= 15V, V
GS
= 0, R
G
= 10M
,
f
= 100Hz, NBW = 6Hz
e
n
Noise Voltage
3
7
nV/
√
Hz
V
DS
= 15V, I
D
= 500μA,
f
= 1kHz,
NBW = 1Hz
e
n
Noise Voltage
11
nV/
√
Hz
V
DS
= 15V, I
D
= 500μA,
f
= 10Hz,
NBW = 1Hz
C
ISS
C
RSS
Common Source Input Capacitance
Common Source Reverse Transfer Cap.
8
3
pF
pF
V
DS
= 15V, I
D
= 500μA
LS846
LOW NOISE, LOW LEAKAGE
SINGLE N-CHANNEL JFET
Linear Integrated Systems
1.
Absolute maximum ratings are limiting values above which serviceability may be impaired.
Information furnished by Linear Integrated Systems is believed to be accurate and reliable. However, no responsibility is assumed for its use; nor for any infringement of patents or other
rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Linear Integrated Systems.
*For equivalent monolithic dual, see LS843 family.